Telescopic sight mount for fire arms



OF? Za839895 June 3, 1958 E. P. DILLON TELESCOPIC SIGHT MOUNT FOR FIREARMS 2 Sheets-Sheet 1 Filed D60. 13, 1955 INVENTOR.

June-3, 1958 E. P. DILLON I TELESCOPIC SIGHT MOUNT FOR FIRE ARMS FiledD80. 13, 1955 I 2 Sheets-Sheet 2 w mx QM N 5 5 I l l l l-W'IIIL lI\-: k[1: u, QN

INVENTOR. M7219 United States Patent TELESCOPIC SIGHT MOUNT FOR FIREARMS Ernesto P. Dillon, Buenos Aires, Argentina Application December 13,1955, Serial No. 552,926

4 Claims. (Cl. 33-50) The present invention refers to a telescope sightmount for firearms, the object of which is to provide a new lockmounting of the telescope sight which in the manner it is combined withthe rifle or weapon carrying it without any supporting bases,constitutes an important innovation in this sort of optical instrumentwhich greatly benefits marksmen in general.

Towards this end many mount systems have been proposed, and it may besaid that they have proved beneficial in every sense. However the resultof same is not what has been expected in practice, as the mountsustaining the sight piece requires, in most cases, another mount asbase for the gun, which means that in each rifle model a specialstructure is required which complicates in a great measure itsapplication, as the shapes, dimensions and exterior forms of the armsvary fundamentally between each other, in accordance with themanufacturing plant producing them.

This means that for each model a special base piece or pieces arerequired to be made, in order to the device being affixed with screws orother means in such a manner that they remain fixed to the bodyenclosing the mechanism in contiguity to the latch. Said pieces, inturn, must possess the means for adapting the carrying sight mount,which logically requires a proportional coordination in the mountingwith the consequent registry for correcting errors in the alignment withrespect to the sight at the extreme end of the barrel.

The fact of having to fix the base pieces for the sight mount tends toshow other disadvantages which specially alter the practice of the useof fire-arms, for, if the sight mounting is taken away, there alwaysremains the base pieces which generally annul the direct sight. It maytherefore be said that the gun or rifle is disabled in order to take aimif the telescopic sight is not mounted.

Worthy of mention is the manner in which the system of the presentinvention avoids all these inconveniences above mentioned, as,comprising a mounting proper, with all its parts for the fixing of thetelescope constituting the sight, it dispenses of all additional basesfor its mounting on the fire-arm; that is to say that, it consists inthe appliance of the mount in a direct manner.

To this end the mount possesses on one hand a set of projections whichcoincide with recesses made in the interior of the opening of thereceiver box, whilst on the other hand, said mounting possesses at leastone tooth of the latch type, pressed by a spring coinciding with a catchformed in the interior of said opening of the receiver box, but on theopposite side of the recess, so that said latchtooth may be wedged inthe corresponding catch in order that with a simple maneuver, all thepoints of the mount may be fixed in the corresponding means; with thisdirect setting, the fire-arm is ready to be operated, with thetelescopic sight in the most precise manner which may be conceived, asthe position of the mount is determined by the proper projecting meansin direct form; and since the recesses are made in accordance with theposition of the projections and latches of the sight, the position isthen precise as if the mount were part of the firearm, applied in thefactory, all of which with the advantage of being easily removable, sothat the exclusion of the sight and its mount leaves free the sightsystem of the fire-arm as, by not leaving any fixed piece with screws,the direct aim of the firearm may be employed.

For a greater clearness of the object of this invention, same has beenillustrated with several drawings in which:

Fig. l is a part of a rifle or fire-arm which shows the part of theopening corresponding to the receiver; the front and posterior part ofsaid opening has been partially sectioned so as to show the recesses andretention for the plugs and latch tooth of the mount carrying the sight;said mount has also been sectioned in partial manner so as to show theslider of the latch, which is pressed by a spring.

Fig. 2 is a view below, represented in section, so as to show the safetyscrew of the latch in order to maintain in fixed manner the retaining ofthe mount.

Fig. 3 is the mount seen in profile, frontwise, in such a manner thatthe disposition of the plugs may be seen. Such disposition may changeslightly according to different fire-arms.

Fig. 4 is a lateral view of a fire-arm, the corresponding opening of thereceiver showing with partial sections the front and rear of the recessin which enter the plugs and latch teeth of the mount. Same is shown asset and carrying a telescopic sight.

Fig. 5 is the tooth of the latch of a different type which, instead of asliding device, possesses a lever pressed by a spiral spring. Finally:

Fig. 6 is the tooth of the latch also as a lever as in Fig. 5 but with arigid spring.

In the different drawings the same reference numbers indicate equal orcorresponding parts, the different components being indicated byletters.

As may be seen in the drawings, a is the breech mechanism action wherethe breech lock bolt is commonly placed. Such breech mechanism apossesses an opening 1 which constitutes the access to its interior andlaterally serves as outlet for the spent cartridges.

This means that it belongs to a rifle or fire-arm of the known types towhich must be applied the sight b with its mounting c possessing thenovelty characteristics for its application in direct engagement.

Mounting c has two clasps 2 and 3 which hold the telescope of sight b.As the mount is destined to be applied in direct manner to the fire-arm,it possesses in the front part of the mount a projection 4, the surface5 of the lower part being slightly concave so as to be adapted to theconvexity of the body 6 which holds the barrel 7 and chamber 8; whilstin the rear part the mount 0 has a resting surface 9 corresponding so asto be adapted to the face 10 of the rear part immediate to the opening1.

Below the level of surface 5 the mount c possesses a spur 11 whichaffects the form as shown in profile of Fig. 3 and coincides forentering into opening 1, but against the access to the chamber 8. Inthis spur 11 the mount has one or more plugs 12 directed parallelly tothe longitudinal line of the sight, and according to the position ofthese plugs, the respective recesses 14 are made in the internal border13 of body 6, with which must coincide plugs 12 when the surface 5 ofthe projection 4 is adapted against the superior face of body 6.

Furthermore, mount c in the opposite side of spur 11 possesses a latchtooth 15 which, being pressed by springs 16 has a displacement with reartension, so that after yielding to a certain pressure forward is able tobe fixed in any catch.

In the rear part of opening 1 a catch 17 is made adjacent to surface 10,said catch being slanted so as to coincide with the slant of tooth 15;the distance between tooth 15 and the resting surface 9 is related inproportion with the distance comprised between the catch 17 and the faceof the base 10, so that if said surface 9 is adapted on the face of thebase 16, tooth 15 will be fixed in catch 17; but the fixing of same mustbe made overcoming the position of spring 16 so that the displacement issufficient in order to also insert plugs 12 in recesses 14. As shown inFig. 1, fixing first the tooth-latch 15 in the catch 17 and makingcertain pressure backwards for a longitudinal displacement, the mount,due to the contraction of spring 16 allows spur 11 to enter the frontpart of opening 1, so that plugs 12 may be fixed in recesses 14, themounting being thus engaged in such a manner as shown in Fig. 4, inwhich through the adjustment of spring 16 the mount is set as if it werean integral part of the breech mechanism; and for greater security itmay be fixed with a safety screw 18 which avoids the displacement oflatch-tooth 15.

In this manner the fire-arm is provided with an optical sight b which isa telescope of the current type which in the position given by mountdetermines the exact aimline so as to obtain success in the firing.

In case of necessity, the clasp 2 is adapted to the mounting c with atransversal guide of glide tail 19; as may be appreciated in Figs. 1 and4 this ring is governed by a windage adjusting screw, 20.

With the same ease as it is engaged, mount c can be unmounted as, afterloosening the safety screw 18 with a slight backward pressure, spring 16is contracted, liberating plugs 12 from recesses 14, the tooth 15remaining in condition to being freed from catch 17; so that the sightand its mount are separated from the fire-arm, which may be used withoutthe optic sight.

In the examples of Figs. 1, 2 and 4 the tooth latch has a slide d whichslides in guide 21 where also is included a spring 16; on the otherhand, in the examples of Figs. and 6 the tooth latch is united to levere with fulcrum in the pin 22 and its arm 23 which is pressed by spring16.

In the example of Fig. 5 spring 16 is helicoid whilst in Fig. 6 thespring is rigid. Undoubtedly when carrying out this invention,modifications in construction may be introduced, without this implying adeparture from the fundamental principles'of the claims which follow.

I claim:

1. Telescopic sight mount for fire-arms, comprising a rigid piececonstituting a mounting disposed parallel ,to the axis of the sight andprovided at its extremities adapted to be directly and removably engagedin opening of the breech action mechanism.

2. Telescopic sight mount for fire-arms, comprising a rigid piececonstituting a mounting disposed parallel to the axis of the sight andprovided upon its ends with two clasps which form an integral settingwith said mounting for holding the telescopic portion of the sight, aspur at the front end of said mounting provided with two plugs extendingparallel to the fire-arm and projecting in the direction of fire, saidplugs registering with recesses in the internal front end of the openingcorresponding to the breech action mechanism, a latch of wedge form atthe rear end of the mounting spring pressed under tension towards thebutt end of the firearm, said latch cooperating with a catch in the rearof said breech opening, whereby said mounting is adapted to be directlyengaged in the opening of the breech action mechanism.

3. Telescopic sight mount for fire-arms, comprising a rigid piececonstituting a mounting disposed parallel to the axis of the sight andprovided upon each extremity with a clasp to form an integral settingwith said mounting for holding the telescopic portion of the sight, saidmounting at its forward end being provided with a two plug spur parallelto the fire-arm and projecting in the direction of fire, said plugsregistering with complementary recesses in the internal front end of theopening corresponding to the breech action mechanism, and said mountingbeing provided at its rear end with a latch of wedge shape forming partof a backwardly spring pressed tension, said latch cooperating with acatch in the rear end of said breech opening, whereby said mounting isadapted to be directly engaged in the said opening of the breech actionmechanism.

4. Telescopic sight mount for fire-arms, comprising a rigid piececonstituting a mounting disposed parallel to the axis of the sight andprovided on its extremities with spaced clasps to form an integralsetting with said mounting for holding the telescopic portion of thesight, said mounting at its forward end being provided with a spurhaving two plugs projecting in parallel toward the direction of fire,said plugs registering with corresponding recesses in the internal frontend of the opening corresponding to the breech action mechanism, themounting at its rearward end being provided with a latch of wedge shapeforming part of a lever pressed by a spring with butt-end tension, saidlatch cooperating with a catch in the rear end of the said opening,whereby said mounting is adapted to be directly engaged in the saidopening of the breech action mechanism.

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References Cited in the file of this patent UNITED STATES PATENTS2,450,466 Carlson Oct. 5, 1948 2,452,145 Pike Oct. 26, 1948 12,529,801Fisk Nov. 14, 1950 2,585,985 Anderson Feb. 19, 1952 2,649,779 Hardgroveet a1. Aug. 25, 1953

